南岭地区大气重力波个例分析
A Case Study of Atmospheric Gravity Wave in Nanling Area

作者: 宫明晓 :中国海洋大学,青岛;

关键词: 重力波小波分析切变不稳定非地转平衡MODISGravity Waves Wavelet Analysis Shear Instability Geostrophic Unbalanced MODIS

摘要:
本文主要通过MODIS资料分析得到明显重力波个例,然后对其进行分析。运用切变不稳定和非地转平衡关系来对此次重力波进行了验证。结果显示风切变和地转适应对此次重力波的生成有一定的触发作用。运用小波分析的方法对此次重力波进行了深入的分析,分析表明此次重力波的波长主要集中在300 - 350 km附近,高度集中在950 hPa和500 hPa附近。

Abstract: We get an obvious gravity wave case by analysing MODIS data. Then we use theory of shear instability and geostrophic unbalanced relationship to prove it. The result shows that wind shear and geostrophic adjustment all play an important role in the development of gravity wave. Wavelet analysis is used to study the characters of the gravity wave in depth. We find that the wavelength of the gravity wave is centered between 300 - 350 km, and the height is centered between 900 hPa and 500 hPa.

文章引用: 宫明晓 (2014) 南岭地区大气重力波个例分析。 气候变化研究快报, 3, 195-201. doi: 10.12677/CCRL.2014.34025

参考文献

[1] 黄荣辉, 陈金忠 (2002) 平流层球面大气地转适应过程和惯性重力波的激发. 大气科学, 3, 289-306.

[2] Gossard, W.H. and Hook, E. (1975) Waves in the atmosphere. Elsevier, Amsterdam, 223.

[3] Uccellini, L.W. and Koch, S.E. (1987) The synoptic setting and possible energy sources for mesoscale wave disturbances. Monthly Weather Review, 115, 721-729.

[4] 覃卫坚, 寿绍文, 高守亭, 等 (2010) 一次冰雹过程的惯性重力波观测及数值模拟. 地球物理学报, 5, 1039-1049.

[5] 刘佳, 王文 (2010) 一次暴雨过程的重力波特征分析. 干旱气象, 1, 65-70.

[6] 许小峰, 孙照渤 (2003) 非地转平衡流激发的重力惯性波对梅雨锋暴雨影响的动力学研究. 气象学报, 6, 655- 660.

[7] 覃卫坚, 寿绍文, 李启泰, 王咏青, 彭江良 (2007) 影响惯性重力波活动规律的动力学因子研究. 高原气象, 3, 519-524.

[8] Zhang, F.Q. and Koch, S.E., Davis, C.A. and Kaplan, M.L. (2000) A survey of unbalanced flow diagnostics and their application. Advances in Atmospheric Sciences, 17, 165-183.

[9] Zhang, F.Q. and Koch, S.E., Davis, C.A. and Kaplan, M.L. (2001) Wavelet analysis and the governing dynamics of a large-amplitude mesoscale gravity-wave event along the East Coast of the United States. Royal Meteorological Society, 127, 2209-2245.

[10] 孙艳辉, 李泽椿, 寿绍文 (2011) 2007年3月3-5日辽宁省暴雪和大风天气的中尺度分析. 气象学报, 5, 936-948.

分享
Top